And dang, Intel! I get that your proprietary ways are awesome, but give us a way to single out a DIMM when troubleshooting!
Great article, as expected from iFixIt.
I am in the thralls of troubleshooting binary-style. It's the pits.
As I understand wiping clean the DIMM contacts would help, would the ink from the money cause any problems? I used the blank border of a $1 bill because I didn't want to introduce anything else to compound the problem.